When Dogs Resource Guard From Other Dogs: What You Need to Know

Your dog didn’t move a muscle. Just a low rumble, a hard stare, and suddenly the other dog had somewhere else to be. Someone got a bully stick. Someone else wanted it. The dog with the bully stick made their position very clear, and the other dog — wisely — decided the other side of the room looked pretty good right now. Resource guarding from other dogs is normal canine behavior. The growl, the stare, the stiff body: that’s a dog communicating. The problem isn’t the guarding itself. The problem is when it escalates, when the other dog doesn’t back down, or when you have two dogs who both think the same resource is theirs.

What Is Resource Guarding Between Dogs?

Resource guarding is exactly what it sounds like — a dog protecting something they value from someone they think might take it. It’s rooted in a pretty simple emotional equation: I have this, I want to keep it, and I’m not sure I will. That insecurity is what drives the behavior, not dominance, not a bad dog. When it comes to other dogs specifically, the resources in question can be almost anything — food, treats, high value chews, toys, a spot on the couch, a doorway, access to you, or even another dog they’ve bonded with. Some dogs guard broadly across multiple resources. Some dogs only care about one specific thing and couldn’t care less about everything else.

Resource guarding between dogs is normal behavior. It only becomes a problem when the communication breaks down — when growling escalates to snapping, snapping escalates to fighting, or when one dog is consistently being bullied out of access to basic resources like food or water.

When Does Resource Guarding Between Dogs Become a Problem?

If you live with multiple dogs, you’ve probably seen some version of this already. A lot of dogs manage it just fine — they communicate clearly, the other dog listens, and everyone moves on. No intervention needed. But resource guarding becomes a problem in two specific situations. The first is when dogs living under the same roof escalate beyond clear communication into actual fighting — when a growl isn’t enough, nobody backs down, and things get physical. The second is when your dog is taking that guarding behavior out into the world and exhibiting it around unfamiliar dogs in contexts where it’s not appropriate — at the dog park, on a walk, anywhere they encounter a dog they don’t live with. A dog who guards their food bowl from their housemate is a very different situation than a dog who is picking fights with random dogs in public. Both involve resource guarding. Both need to be addressed differently.

What To Do About Resource Guarding in the Home

If your dogs are getting into it over resources at home, the first move is management — and that means changing the environment immediately so the trigger stops occurring. Pick up all the toys and only allow dogs to have them individually when they’re separated. Feed dogs in separate spaces with a closed door between them so each dog can eat without feeling the need to guard. Pick up empty bowls after meals so they’re not sitting on the floor as a potential flashpoint. If your dog guards their bed, move it out of the main walkway and into a corner so other dogs aren’t constantly passing by it. The goal isn’t to fix the behavior overnight — it’s to stop the rehearsal while you work on a longer term solution. Every fight over a resource is a step backward. Management stops the bleeding.

What To Do About Resource Guarding in Public

If your dog is resource guarding around unfamiliar dogs in public — getting into scuffles at the dog park, on the beach, anywhere off leash — the first step is removing off leash access entirely. Your dog needs to be on leash until their behavior is more reliable.

Allowing a dog who is actively resource guarding in public to continue running off leash is a safety problem for other dogs and frankly irresponsible. And it’s worth saying: if you’re letting your dog off leash anywhere, you should have a solid recall on them — one that works even when something interesting is happening nearby. If you don’t have that yet, the leash isn’t just about resource guarding. It’s about having basic control. For now, if your dog is having resource guarding incidents with unfamiliar dogs, a leash is your best tool and a non-negotiable starting point.

The Positive Interrupter: Your Most Useful Tool

One of the easiest and most practical skills you can teach for managing resource guarding between dogs is a positive interrupter. This is a cue — usually a sound or a word your dog has learned means “stop what you’re doing and look at me” — that interrupts behavior before it escalates and gives you somewhere to redirect your dog. Go back to the bully stick scenario from the intro. The guarding dog growls, the approaching dog doesn’t read it correctly, and things start to heat up. As the owner, you can step in and use your positive interrupter on the approaching dog — and then redirect them somewhere appropriate. Go get your toy. Go to your bed. Go outside. Come over here. Go lie down. You’ve interrupted the moment and given the dog something else to do, which means the guarding dog gets to keep their bully stick, nobody has to fight about it, and over time the approaching dog gets better at reading and responding appropriately to the other dog’s communication.

Recall: The Off Leash Version of the Same Skill

For dogs who are resource guarding in public, a rock solid recall is the equivalent tool. If you can call your dog away reliably — even when another dog is nearby and tension is starting to build — you can interrupt the situation before it becomes a problem. A recall gets your dog out of a brewing conflict and back to you before anyone gets hurt. The positive interrupter is most useful in close encounters — two dogs sniffing, tension starting to build, and you’re right there to redirect before anything happens. The recall is your tool when there’s distance involved — your dog is running around, playing, and you need to pull them out of a situation before it develops. Both require practice well before you need them. The time to build a reliable recall is not at the dog park when your dog is already locked onto another dog’s toy.

How to Teach a Positive Interrupter

Teaching a positive interrupter is straightforward and doesn’t take long to build. Start by picking a word or sound your dog has never heard before in any meaningful context — something completely fresh. We’ll use “Pickles” for the sake of this example, but honestly pick whatever makes you laugh because you’re going to say it a lot. The goal is to condition this word to mean one thing: cookies are coming, immediately, no questions asked.

Here’s how it works. Say “Pickles.” Pause one second. Reach into the jar of treats on the counter, grab a small handful, and feed them to your dog one at a time until they’re gone. That’s it. Say “Pickles” again. Pause one second. Grab another small handful, feed them one by one until they’re gone. Repeat this fifteen times. Do it every day for five days. You’re not asking your dog to do anything. You’re not waiting for a behavior. You’re just building a rock solid association between that word and a small parade of cookies arriving in rapid succession. After five days of this, say “Pickles” in the middle of a completely unrelated moment and watch what happens. Your dog will stop whatever they’re doing and look at you like the cookie jar just spoke their name. That’s a conditioned positive interrupter. Now you can use it.

When To Get Professional Help

If your dog’s resource guarding has moved beyond warning signals — the stiff body, the hard stare, the growl — and escalated to snapping, lunging, or making actual contact, it’s time to bring in a professional. Warning signals are communication. Biting is a different conversation entirely, and one that needs a qualified trainer who can assess what’s actually happening and build a behavior modification plan around it. Management will help in the short term, but it’s not a substitute for working through the underlying behavior with someone who knows what they’re doing.

So Where Does That Leave You?

Resource guarding between dogs is one of those things that sounds scary but is usually very manageable — especially when you catch it early, set up your environment thoughtfully, and have a few reliable tools in your back pocket. A solid positive interrupter and a good recall will get you surprisingly far. And if things have escalated beyond what management and “Pickles” can handle, that’s what I’m here for.

---

Want more practical behavior advice delivered straight to your inbox? Once a month I send out a newsletter packed with real stories from 25+ years of working with dogs — including my own — plus actionable behavior advice you can actually use.

➡️ Sign up for the newsletter here.